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Read time: 5 minute(s)
< / div > < div class = "- topic/body concept/conbody body conbody" > < section class = "- topic/section section" id = "mac_configuration__section_j4p_jts_4dc" data-ofbid = "mac_configuration__section_j4p_jts_4dc" > < h2 class = "- topic/title title sectiontitle" > 内核配置< / h2 >
< ol class = "- topic/ol ol" id = "mac_configuration__ol_ptj_nts_4dc" data-ofbid = "mac_configuration__ol_ptj_nts_4dc" > < li class = "- topic/li li" data-ofbid = "d46685e28__20250121171517" >
< div class = "- topic/p p" data-ofbid = "d46685e30__20250121171517" > < strong class = "+ topic/ph hi-d/b ph b" > 进入 kernel 的功能配置界面< / strong > < div class = "- topic/div div" >
< div class = "- topic/p p" data-ofbid = "d46685e35__20250121171517" > 在 SDK 根目录下，执行下列命令，进入 kernel
的功能配置界面：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_wg1_3ml_sdc" data-ofbid = "mac_configuration__codeblock_wg1_3ml_sdc" > make kernel-menuconfig< / pre > < / div >
< p class = "- topic/p p" data-ofbid = "d46685e40__20250121171517" > 或使用简写命令< / p >
< div class = "- topic/p p" data-ofbid = "d46685e43__20250121171517" >
< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_uss_hml_sdc" data-ofbid = "mac_configuration__codeblock_uss_hml_sdc" > make km< / pre >
< / div >
< / div > < / div >
< / li > < li class = "- topic/li li" data-ofbid = "d46685e50__20250121171517" >
< div class = "- topic/div div" id = "mac_configuration__section_dr2_xxr_21c" > < strong class = "+ topic/ph hi-d/b ph b" > 配置网络功能< / strong >
< div class = "- topic/p p" data-ofbid = "d46685e56__20250121171517" > 如需在内核中使用以太网功能，则在内核配置界面打开和配置网络相关功能，如下所示：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_lqx_yxr_21c" data-ofbid = "mac_configuration__codeblock_lqx_yxr_21c" > [*] Networking support
Networking options
< *> Packet socket
< *> Unix domain sockets
[*] TCP/IP networking
< *> INET: socket monitoring interface
< *> DNS Resolver support
< *> NETLINK: socket monitoring interface< / pre > < / div > < / div >
< / li > < li class = "- topic/li li" data-ofbid = "d46685e61__20250121171517" >
< div class = "- topic/div div" id = "mac_configuration__section_kz2_yxr_21c" > < strong class = "+ topic/ph hi-d/b ph b" > 模块驱动配置< / strong >
< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_hcb_zxr_21c" data-ofbid = "mac_configuration__codeblock_hcb_zxr_21c" > Device Drivers
[*] Network device support
[*] Ethernet driver support
[*] ArtInChip Gigabit Ethernet driver< / pre >
< / div >
< / li > < / ol >
< / section > < section class = "- topic/section section" id = "mac_configuration__section_nz5_nts_4dc" data-ofbid = "mac_configuration__section_nz5_nts_4dc" > < h2 class = "- topic/title title sectiontitle" > 系统参数配置< / h2 >
< div class = "- topic/p p" data-ofbid = "d46685e77__20250121171517" > 系统参数主要存放于 < span class = "+ topic/ph sw-d/filepath ph filepath" > target/d211/common/d211.dtsi< / span > 文件中，模块系统参数随 SoC
设置而定，一般不得进行更改。如因更换了新的 SoC
需要修改系统参数，必须在专业人士的指导下更改。< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_lyn_1yr_21c" data-ofbid = "mac_configuration__codeblock_lyn_1yr_21c" > gmac0: ethernet@< span class = "hl-number" > 10280000< / span > {
compatible = < span class = "hl-string" > "artinchip,aic-mac-v1.0"< / span > ;
reg = < < span class = "hl-number" > 0x10280000< / span > < span class = "hl-number" > 0x10000< / span > > ;
interrupts = < GIC_SPI < span class = "hl-number" > 7< / span > IRQ_TYPE_LEVEL_HIGH> ;
interrupt-names = < span class = "hl-string" > "macirq"< / span > ;
clocks = < & ccu CLK_GMAC0> ;
clock-names = < span class = "hl-string" > "gmac"< / span > ;
resets = < & rst RESET_GMAC0> ;
reset-names = < span class = "hl-string" > "gmac"< / span > ;
};< / pre > < / div >
< / section > < section class = "- topic/section section" id = "mac_configuration__section_yz1_sts_4dc" data-ofbid = "mac_configuration__section_yz1_sts_4dc" > < h2 class = "- topic/title title sectiontitle" > 功能参数配置< / h2 >
< div class = "- topic/p p" data-ofbid = "d46685e90__20250121171517" > 功能参数主要针对某一个使用方案而定，不同的方案使用的参数可能不同。功能参数参数主要存放于 < span class = "+ topic/ph sw-d/filepath ph filepath" >
target/d211/xxx/board.dts< / span > 文件中，功能参数的设置必须和硬件原理图相匹配。< div class = "- topic/note note note note_note" id = "mac_configuration__note_t5x_xws_4dc" data-ofbid = "mac_configuration__note_t5x_xws_4dc" > < span class = "note__title" > 注：< / span > 关于详细的参数描述，可查看< a xml:lang = "zh-CN" lang = "zh-CN" class = "- topic/xref xref" href = "mac_func_param.html" > 功能参数描述< / a > < / div > < ul class = "- topic/ul ul" id = "mac_configuration__ul_xq1_2yr_21c" data-ofbid = "mac_configuration__ul_xq1_2yr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e101__20250121171517" > < strong class = "+ topic/ph hi-d/b ph b" > GMAC
参数< / strong > < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_sjd_5ws_4dc" data-ofbid = "mac_configuration__codeblock_sjd_5ws_4dc" > & gmac0 {
pinctrl-names = < span class = "hl-string" > "default"< / span > ;
pinctrl-< span class = "hl-number" > 0< / span > = < & gmac0_< span class = "hl-number" > 1000< / span > m_pins> ;
phy-handle = < & gmac0_phy> ;
phy-reset-gpios = < & gpio_d < span class = "hl-number" > 3< / span > GPIO_ACTIVE_HIGH> ;
phy-addr = < < span class = "hl-number" > 1< / span > > ;
phy-mode = < span class = "hl-string" > "rgmii"< / span > ;
max-speed = < < span class = "hl-number" > 1000< / span > > ;
aic,tx-delay = < < span class = "hl-number" > 0xc< / span > > ;
aic,rx-delay = < < span class = "hl-number" > 0xc< / span > > ;
status = < span class = "hl-string" > "okay"< / span > ;
gmac0_< span class = "hl-number" > 1000< / span > m_pins: gmac0-< span class = "hl-number" > 0< / span > {
pins {
pinmux = < AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 0< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 1< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 2< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 3< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 4< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 5< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 6< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 7< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 8< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 9< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 10< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 11< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 12< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 13< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 14< / span > , < span class = "hl-number" > 6< / span > )> ,
< AIC_PINMUX(< span class = "hl-string" > 'E'< / span > , < span class = "hl-number" > 15< / span > , < span class = "hl-number" > 6< / span > )> ;
bias-disable;
drive-strength = < < span class = "hl-number" > 3< / span > > ;
};
};< / pre > < / li > < li class = "- topic/li li" data-ofbid = "d46685e106__20250121171517" > < strong class = "+ topic/ph hi-d/b ph b" > MDIO 参数< / strong > < div class = "- topic/p p" data-ofbid = "d46685e109__20250121171517" > MDIO 参数用于配置 MII
BUS： < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_g21_wws_4dc" data-ofbid = "mac_configuration__codeblock_g21_wws_4dc" > gmac0_mdio: mdio {
compatible = < span class = "hl-string" > "aicmac-mdio"< / span > ;
gmac0_phy: ethernet-phy@< span class = "hl-number" > 1< / span > {
reg = < < span class = "hl-number" > 1< / span > > ;
};
};
};< / pre > < / div > < p class = "- topic/p p" data-ofbid = "d46685e113__20250121171517" > MII BUS 用于连接 MAC 和 PHY。< / p > < / li > < li class = "- topic/li li" data-ofbid = "d46685e115__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e117__20250121171517" > 配置 PHY 模块的工作模式，目前 MAC 仅支持 Reduced 接口：< / p >
< ul class = "- topic/ul ul" id = "mac_configuration__ul_mp3_cyr_21c" data-ofbid = "mac_configuration__ul_mp3_cyr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e121__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e123__20250121171517" > RMII： < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d46685e126__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e128__20250121171517" > RGMII： < / p >
< / li > < / ul >
< p class = "- topic/p p" data-ofbid = "d46685e132__20250121171517" > 如 SoC 中自带了 MAC 模块，则 MAC 在和 PHY 配合工作前，需要匹配好二者的工作模式。< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d46685e135__20250121171517" > < strong class = "+ topic/ph hi-d/b ph b" > 百兆功能参数配置< / strong > < div class = "- topic/p p" data-ofbid = "d46685e138__20250121171517" > 参考方案为 < span class = "+ topic/ph sw-d/filepath ph filepath" > per2-spinand< / span > ，
工作在百兆模式下：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_hjg_pyr_21c" data-ofbid = "mac_configuration__codeblock_hjg_pyr_21c" > & gmac0 {
pinctrl-names = < span class = "hl-string" > "default"< / span > ;
pinctrl-< span class = "hl-number" > 0< / span > = < & gmac0_pins> ;
phy-handle = < & gmac0_phy> ;
phy-reset-gpios = < & gpio_a < span class = "hl-number" > 2< / span > GPIO_ACTIVE_HIGH> ;
phy-addr = < < span class = "hl-number" > 1< / span > > ;
phy-mode = < span class = "hl-string" > "rmii"< / span > ;
max-speed = < < span class = "hl-number" > 100< / span > > ;
aic,use_extclk;
status = < span class = "hl-string" > "okay"< / span > ;
gmac0_mdio: mdio {
compatible = < span class = "hl-string" > "aicmac-mdio"< / span > ;
gmac0_phy: ethernet-phy@< span class = "hl-number" > 1< / span > {
reg = < < span class = "hl-number" > 1< / span > > ;
};
};
};< / pre > < / div > < / li > < li class = "- topic/li li" data-ofbid = "d46685e145__20250121171517" > < strong class = "+ topic/ph hi-d/b ph b" > 千兆功能参数配置< / strong > < div class = "- topic/p p" data-ofbid = "d46685e148__20250121171517" > 参考方案为 < span class = "+ topic/ph sw-d/filepath ph filepath" > per1< / span > ，
工作在千兆模式下：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_pq4_pyr_21c" data-ofbid = "mac_configuration__codeblock_pq4_pyr_21c" > & gmac0 {
pinctrl-names = < span class = "hl-string" > "default"< / span > ;
pinctrl-< span class = "hl-number" > 0< / span > = < & gmac0_< span class = "hl-number" > 1000< / span > m_pins> , < & clk_out2_pins_b> ;
phy-handle = < & gmac0_phy> ;
phy-reset-gpios = < & gpio_f < span class = "hl-number" > 10< / span > GPIO_ACTIVE_HIGH> ;
phy-addr = < < span class = "hl-number" > 1< / span > > ;
phy-mode = < span class = "hl-string" > "rgmii"< / span > ;
max-speed = < < span class = "hl-number" > 1000< / span > > ;
aic,tx-delay = < < span class = "hl-number" > 0xc< / span > > ;
aic,rx-delay = < < span class = "hl-number" > 0xc< / span > > ;
status = < span class = "hl-string" > "okay"< / span > ;
gmac0_mdio: mdio {
compatible = < span class = "hl-string" > "aicmac-mdio"< / span > ;
gmac0_phy: ethernet-phy@< span class = "hl-number" > 1< / span > {
reg = < < span class = "hl-number" > 1< / span > > ;
};
};
};< / pre > < / div > < / li > < / ul > < / div >
< / section > < section class = "- topic/section section" id = "mac_configuration__section_zym_1xs_4dc" data-ofbid = "mac_configuration__section_zym_1xs_4dc" > < h2 class = "- topic/title title sectiontitle" > 时钟配置< / h2 >
< div class = "- topic/p p" data-ofbid = "d46685e161__20250121171517" > MAC 和 PHY 的协同工作时，涉及以下时钟配置：< ul class = "- topic/ul ul" id = "mac_configuration__ul_fhd_syr_21c" data-ofbid = "mac_configuration__ul_fhd_syr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e164__20250121171517" > MAC 工作时钟< ol class = "- topic/ol ol" id = "mac_configuration__ol_hn4_5yr_21c" data-ofbid = "mac_configuration__ol_hn4_5yr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e167__20250121171517" > 配置代码< div class = "- topic/p p" data-ofbid = "d46685e169__20250121171517" > MAC 的内部工作时钟通过 PLL_INT1 分频获得，为 50M，
工作时钟不会因为方案的不同而不同，为一固定值。< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_z3q_tyr_21c" data-ofbid = "mac_configuration__codeblock_z3q_tyr_21c" > plat-> aicmac_clk = devm_clk_get(& pdev-> dev, AICMAC_RESOURCE_NAME);
clk_set_rate(plat-> aicmac_clk, CSR_F_< span class = "hl-number" > 50< / span > M);
clk_prepare_enable(plat-> aicmac_clk);< / pre > < / div > < / li > < li class = "- topic/li li" data-ofbid = "d46685e173__20250121171517" > 寄存器查验< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_ggx_vyr_21c" data-ofbid = "mac_configuration__codeblock_ggx_vyr_21c" > reg-dump -a < span class = "hl-number" > 0x18020440< / span > -c < span class = "hl-number" > 4< / span >
< span class = "hl-number" > 0x18020440< / span > : < span class = "hl-number" > 00003117< / span > < span class = "hl-number" > 00003117< / span > < span class = "hl-number" > 00000000< / span > < span class = "hl-number" > 00000000< / span > < / pre > < / li > < / ol > < / li > < li class = "- topic/li li" data-ofbid = "d46685e177__20250121171517" > PHY 工作时钟< p class = "- topic/p p" data-ofbid = "d46685e179__20250121171517" > PHY 的工作时钟一般为 25M，
PHY 模块工作。< / p > < div class = "- topic/p p" data-ofbid = "d46685e181__20250121171517" > 在 CMU 中使能 PHY 工作时钟 < span class = "+ topic/keyword pr-d/parmname keyword parmname" > clk-out< / span > ，且在 MAC
中配置
IO： < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_ek2_bzr_21c" data-ofbid = "mac_configuration__codeblock_ek2_bzr_21c" > & cmu {
clk-out0 = < < span class = "hl-number" > 25000000< / span > > ;
clk-out1 = < < span class = "hl-number" > 25000000< / span > > ;
clk-out2 = < < span class = "hl-number" > 25000000< / span > > ;
clk-out3 = < < span class = "hl-number" > 25000000< / span > > ;
< em class = "hl-comment" > // clk-out0-enable;< / em >
< em class = "hl-comment" > // clk-out1-enable;< / em >
< em class = "hl-comment" > /* Enable clock out2 */< / em >
clk-out2-enable;
< em class = "hl-comment" > // clk-out3-enable;< / em >
};< / pre > < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_b5f_mbr_sdc" data-ofbid = "mac_configuration__codeblock_b5f_mbr_sdc" > & gmac0 {
pinctrl-names = < span class = "hl-string" > "default"< / span > ;
pinctrl-< span class = "hl-number" > 0< / span > = < & gmac0_< span class = "hl-number" > 1000< / span > m_pins> , < & clk_out2_pins_b> ;
}< / pre > < / div > < / li > < li class = "- topic/li li" data-ofbid = "d46685e190__20250121171517" > MDC 时钟< div class = "- topic/p p" data-ofbid = "d46685e192__20250121171517" >
< ol class = "- topic/ol ol" id = "mac_configuration__ol_wpq_yyr_21c" data-ofbid = "mac_configuration__ol_wpq_yyr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e195__20250121171517" > 配置代码< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_olh_xyr_21c" data-ofbid = "mac_configuration__codeblock_olh_xyr_21c" > < span class = "hl-directive" > define< / span > AICMAC_CSR_DEFAULT AICMAC_CSR_< span class = "hl-number" > 150< / span > _< span class = "hl-number" > 250< / span > M
value |= (priv-> plat-> clk_csr < < mdio_data-> mii_reg.clk_csr_shift) &
mdio_data-> mii_reg.clk_csr_mask;< / pre > < / li > < li class = "- topic/li li" data-ofbid = "d46685e199__20250121171517" > 寄存器查验< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_plh_xyr_21c" data-ofbid = "mac_configuration__codeblock_plh_xyr_21c" > BIT(< span class = "hl-number" > 2< / span > ,< span class = "hl-number" > 5< / span > ) 为 < span class = "hl-number" > 0100< / span > ， < span class = "hl-number" > 150< / span > -< span class = "hl-number" > 250< / span > MHz
reg-dump -a < span class = "hl-number" > 0x10280090< / span > -c < span class = "hl-number" > 4< / span >
< span class = "hl-number" > 0x10280090< / span > : < span class = "hl-number" > 00000< / span > a90 < span class = "hl-number" > 00000000< / span > < span class = "hl-number" > 00000000< / span > < span class = "hl-number" > 00000000< / span > < / pre > < / li > < / ol >
< / div > < / li > < li class = "- topic/li li" data-ofbid = "d46685e204__20250121171517" > MDATA 时钟< div class = "- topic/p p" data-ofbid = "d46685e206__20250121171517" > MDATA 时钟 (TXC) 为 MAC 和 PHY 进行数据传输的时钟：< ul class = "- topic/ul ul" id = "mac_configuration__ul_sxj_ryr_21c" data-ofbid = "mac_configuration__ul_sxj_ryr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e209__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e211__20250121171517" > 百兆网络：可以是 MAC 供给 PHY， < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d46685e214__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e216__20250121171517" > 千兆网络：只能是 MAC 供给 PHY， < / p >
< / li > < / ul > < ul class = "- topic/ul ul" id = "mac_configuration__ul_vvt_qbr_sdc" data-ofbid = "mac_configuration__ul_vvt_qbr_sdc" > < li class = "- topic/li li" data-ofbid = "d46685e220__20250121171517" > 如果 PHY 提供给 MAC： < ul class = "- topic/ul ul" id = "mac_configuration__ul_txj_ryr_21c" data-ofbid = "mac_configuration__ul_txj_ryr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e223__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e225__20250121171517" > 在 DTS 中设置 < span class = "+ topic/keyword pr-d/parmname keyword parmname" > aic,use_extclk< / span > < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d46685e230__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e232__20250121171517" > 寄存器： < / p >
< / li > < / ul > < / li > < li class = "- topic/li li" data-ofbid = "d46685e235__20250121171517" > 如果 MAC 提供给 PHY： < ul class = "- topic/ul ul" id = "mac_configuration__ul_uxj_ryr_21c" data-ofbid = "mac_configuration__ul_uxj_ryr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e238__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e240__20250121171517" > 在 DTS 中不设置 < span class = "+ topic/ph sw-d/filepath ph filepath" > aic,use_extclk< / span > < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d46685e245__20250121171517" >
< p class = "- topic/p p" data-ofbid = "d46685e247__20250121171517" > 寄存器： < / p >
< / li > < / ul > < / li > < / ul > < / div > < / li > < / ul > < / div >
< / section > < section class = "- topic/section section" id = "mac_configuration__section_nvn_cxs_4dc" data-ofbid = "mac_configuration__section_nvn_cxs_4dc" > < h2 class = "- topic/title title sectiontitle" > MAC 地址配置< / h2 >
< p class = "- topic/p p" data-ofbid = "d46685e256__20250121171517" > MAC 地址的使用优先级如下所示：< / p >
< ol class = "- topic/ol ol" id = "mac_configuration__ul_ehj_3zr_21c" data-ofbid = "mac_configuration__ul_ehj_3zr_21c" > < li class = "- topic/li li" data-ofbid = "d46685e260__20250121171517" > 调试配置< div class = "- topic/p p" data-ofbid = "d46685e262__20250121171517" > 在 < span class = "+ topic/ph sw-d/filepath ph filepath" > board.dts< / span > 的 < code class = "+ topic/ph pr-d/codeph ph codeph" > gmac< / code >
配置域中添加下列信息：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_configuration__codeblock_vtt_vbr_sdc" data-ofbid = "mac_configuration__codeblock_vtt_vbr_sdc" > local-mac-address = [< span class = "hl-number" > 2e< / span > f6 < span class = "hl-number" > 01< / span > e3 < span class = "hl-number" > 76< / span > b6]< / pre > < / div > < / li > < li class = "- topic/li li" data-ofbid = "d46685e272__20250121171517" > 用户配置< p class = "- topic/p p" data-ofbid = "d46685e274__20250121171517" > 用户生产时配置在特殊数据分区中的 MAC 地址。< / p > < / li > < li class = "- topic/li li" data-ofbid = "d46685e276__20250121171517" > 加密 CHIPID< p class = "- topic/p p" data-ofbid = "d46685e278__20250121171517" > uboot 中获取 chipID，
使用< / p > < / li > < li class = "- topic/li li" data-ofbid = "d46685e280__20250121171517" > Random< p class = "- topic/p p" data-ofbid = "d46685e282__20250121171517" > kernel 驱动中在无法从以上获得 mac 地址的时候，会 random 一个值作为 mac 地址使用< / p > < / li > < / ol >
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< div class = " wh_topic_toc " > < div class = "wh_topic_label" > 在本页上< / div > < ul > < li class = "section-item" > < div class = "section-title" > < a href = "#mac_configuration__section_j4p_jts_4dc" data-tocid = "mac_configuration__section_j4p_jts_4dc" > 内核配置< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#mac_configuration__section_nz5_nts_4dc" data-tocid = "mac_configuration__section_nz5_nts_4dc" > 系统参数配置< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#mac_configuration__section_yz1_sts_4dc" data-tocid = "mac_configuration__section_yz1_sts_4dc" > 功能参数配置< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#mac_configuration__section_zym_1xs_4dc" data-tocid = "mac_configuration__section_zym_1xs_4dc" > 时钟配置< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#mac_configuration__section_nvn_cxs_4dc" data-tocid = "mac_configuration__section_nvn_cxs_4dc" > MAC 地址配置< / a > < / div > < / li > < / ul > < / div >
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